diff --git a/README.md b/README.md
index 535cae0..0206762 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,9 @@
 * [Show all ignored files](https://github.com/git-tips/tips#show-all-ignored-files)
 * [Create new working tree from a repository (git 2.5)](https://github.com/git-tips/tips#create-new-working-tree-from-a-repository-git-25)
 * [Create new working tree from HEAD state](https://github.com/git-tips/tips#create-new-working-tree-from-head-state)
+* [Before deleting untracked files/directory, do a dry run to get the list of these files/directories](https://github.com/git-tips/tips#before-deleting-untracked-filesdirectory-do-a-dry-run-to-get-the-list-of-these-filesdirectories)
+* [Forcefully remove untracked files](https://github.com/git-tips/tips#forcefully-remove-untracked-files)
+* [Forcefully remove untracked directory](https://github.com/git-tips/tips#forcefully-remove-untracked-directory)
 
 <!-- Don’t remove or change the comment below – that can break automatic updates. More info at <http://npm.im/doxie.inject>. -->
 <!-- @doxie.inject end toc -->
@@ -299,5 +302,26 @@ git worktree add -b <branch-name> <path> <start-point>
 git worktree add --detach <path> HEAD
 ```
 
+## Before deleting untracked files/directory, do a dry run to get the list of these files/directories
+```sh
+git clean -n
+```
+
+## Forcefully remove untracked files
+```sh
+git clean -f
+```
+
+## Forcefully remove untracked directory
+```sh
+git clean -f -d
+```
+
+
+__Alternatives:__
+```sh
+git clean -df
+```
+
 <!-- Don’t remove or change the comment below – that can break automatic updates. More info at <http://npm.im/doxie.inject>. -->
 <!-- @doxie.inject end -->
diff --git a/tips.json b/tips.json
index ef8d003..f9dd009 100644
--- a/tips.json
+++ b/tips.json
@@ -169,5 +169,18 @@
   {
       "title": "Create new working tree from HEAD state",
       "tip": "git worktree add --detach <path> HEAD"
+  },
+  {
+    "title": "Before deleting untracked files/directory, do a dry run to get the list of these files/directories",
+    "tip": "git clean -n"
+  },
+  {
+    "title": "Forcefully remove untracked files",
+    "tip": "git clean -f"
+  },
+  {
+    "title": "Forcefully remove untracked directory",
+    "tip": "git clean -f -d",
+    "alternatives": ["git clean -df"]
   }
 ]